Connector Maintenance Guidelines - Gemini 620pd Profiling Product Manual

Gemini Profiler Installation

Connector Maintenance Guidelines

Mating surfaces should be lubricated with 3M Silicone Spray or equivalent, DO
NOT GREASE. Connectors must be lubricated on a regular basis. Lubricate O-rings
with Dow Corning #111 Valve Lubricant or equivalent. Use Dust Caps and keep
connectors clean to prevent damage in storage and service. O-rings can be seriously
degraded if exposed to direct sunlight or high ozone levels for extended periods of
time. Clean plugs and receptacles with soap and fresh water.
Ground Fault Monitoring
The power supply within the Gemini includes an electrically isolated DC-DC
converter front-end. There is a small capacitive connection between the isolated
ground and the sonar chassis which should not noticeably affect any impressed
current ground fault indicator (GFI) equipment.
Power
0695-SOM-00001, Issue: 03
Caution
When attaching a connector make sure that both connector and socket are
completely dry. Any water trapped in the connection could result in an
electrical short.
Caution
If the Gemini has two ports then the unused port must have a blanking cap
fitted prior to immersing in water. Failure to do this will cause permanent
damage.
Caution
If using alcohol or IPA to clean out the connector take care that it does not
come into contact with any other part of the sonar. If an O-ring is present
it should be first removed and discarded and the new O-ring only inserted
after the IPA has evaporated.
Caution
Never try to make the Gemini work down a long cable by increasing the
PSU output voltage above 75V DC.
22
Gemini Profiling System
© Tritech International Ltd.